Home / 12,438,085.31-18,659,785.17-4,351,324.76

Finding the Fourth Proportional to 12,438,085.31, 18,659,785.17 and 4,351,324.76

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Solution

The fourth proportional to 12,438,085.31, 18,659,785.17 and 4,351,324.76 is: 6,527,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,085.31 : 18,659,785.17 = 4,351,324.76 : x
  2. Step 2: Convert to fraction form
    12,438,085.31/18,659,785.17 = 4,351,324.76/x
  3. Step 3: Cross multiply
    12,438,085.31x = 18,659,785.17 × 4,351,324.76
  4. Step 4: Simplify right side
    12,438,085.31x = 81,194,785,195,018.34
  5. Step 5: Solve for x
    x = 81,194,785,195,018.34/12,438,085.31
  6. Step 6: Final answer
    x = 6,527,916.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.